ROUGH IDLE AND STALLS

  • Tiny
  • Bonecollector2012
  • 1997 GMC Sierra
  • 140 miles

My 97 GMC Sierra has a really rough idle and it dies when you stop at a lighht. What could thhat be?

Sunday, August 19th, 2012 AT 2:00 PM

1 Answer

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,555 posts

Look for vacuum leaks. Check to see if the injectors are working correctly. The spray patterns should be the same.

Check fuel pressure.

Throttle body gaskets are common failures for this condition

Roy

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Sunday, August 19th, 2012 AT 2:10 PM

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